Item DescriptionDyna-Sys specific cable-pull for (HG-X) 10-speed mountain drivetrain compatibilityRapidFire-Plus shifters with XT-logo (no brake levers)Front shifter convertible between double-(2x) or triple-(3x) front 10sp drivetrains2-position mount for in/outboard shifter placement next to brake lever on clamp for standard model; i-spec model SH-51603 has sliding mount with no clampMulti release mechanism provides immediate shift response2-way release trigger for thumb or finger actuationAbove bar Optical Gear Display is removable with integrated coverplate; i-spec model SH51603 has no displaySet includes SP-41 housing and cables (individuals include cable only)To convert standard lever set with necessary bracket to i-spec, please use SH-53625SH-51603: i-spec model can only be used with compatible Shimano i-spec brake levers M988/985/820/785/675/666/640/596Item Specificationsmodel: SL-M780 i-specspeed: 2/3x10spF/R: setweight: 250gcolor: black/silver: